Steam Distribution; Steam Distribution In Ducts - Linear Distributors; Positioning The Linear Distributors In The Air Ducts - Carel gaSteam 45 Manual Del Usuario

Humidifi er fi tting dia. mm
Humidifi er capacity kg/h (lbs/h)
40 25 834 DP085D40R0
40 35 1015 DP105D40R0
40 45 1222 DP125D40R0
40 45 1636 DP165D40R0
40 45 2025 DP205D40R0
**: 40x40x40 "Y" kit for branching the steam hose available from
01/01/2005.
dimensions in mm:
Ø A Ø B Ø Y
40 10 89
Fig. 4.a - assembly distributor
1
min. 200 mm
≥ 70 mm
5
min 200 mm
8
=
=

4. STEAM DISTRIBUTION

To achieve optimal humidifi er effi ciency, the steam produced must be introduced into the room uni-
2x40 2x40 4x40
45 90 180 formly, in order to prevent the spraying of drops and notable condensation. This is best achieved using
(100) (200) (400)
steam blowers or linear distributors. The right steam distributor must be chosen according to the place
where the steam is to be introduced.

4.1 Steam distribution in ducts - linear distributors

For steam distribution into air ducts, the steam distributor must be sized according to the output of the
2
humidifi er and the cross-section of the ducting. Figure 4.a provides the dimensions of the CAREL linear
2 (4)**
steel distributors. Table 4.a specifi es the minimum number and the model of the distributors recommen-
2 2 4
ded for the type of humidifi er used.
2 2 4
2 2 4
N.B.: if the duct is not wide enough for the distributor, two shorter distributors can be used (numbers in
Tab. 4.a
brackets), by branching off the steam hose.
Assembly of the linear distributors (see Fig. 4.a):
• make a series of holes in the wall of the duct according to the drilling template indicated in Fig. 4.a;
• insert the distributor with the steam holes facing upwards;
• fasten the fl ange of the distributor using 4 screws.
To allow the return of condensate using the drain connection (see Installation of the condensate drain
pipe), mount the distributor (Fig. 4.a) with the inlet connection closer than the closed end, which, for this
reason, must be adequately supported (the support surface already has the right slope).
1 steam inlet
2 condensate drain
3 fl ange gasket
4 fasten the support where required
5 max. screw diameter "M5"
6 L (see Table 4.a)
7 hole on the wall
8 use the fastening support supplied so as to ensure the slope determined by the shape of the fl ange
Ø X
60 99

4.2 Positioning the linear distributors in the air ducts

As allowed by the dimensions of the air duct, the distributor must be as long as possible and located
away from curves, branches, changes in cross-section, grills, fi lters and fans.
The minimum recommended distance between the steam distributor and the nearest obstacle is around
1-1.5 metres, yet this greatly depends on the operating conditions; this distance it in fact increases with:
• an increase in the air speed in the duct;
• an increase in the relative humidity of the air before and, above all, after humidifi cation;
• a decrease in turbulence.
Follow the indications and the distances between the distributor and the walls of the ducting and/or
between two distributors, as indicated in the fi gures below (distances in mm).
2
1/3 H
6
H > 400 mm
2/5 H
1/5 H
H > 200 mm
9
=
1/2 H
=
12
3
H > 250 mm
1/3 H
≥ 200 mm
7
H > 500 mm
2/7 H
2/7 H
1/7 H
H > 300 mm
10
=
=
=
=
Fig. 4.b
4
H > 250 mm
2/5 H
≥ 200 mm
1/5 H
H > 600 mm
2/7 H
2/7 H
1/7 H
11
H > 500 mm
=
1/3 H
1/3 H
=
gaSteam HARDWARE +030220538 - rel. 1.4 - 22.01.2008
Table 4.b
H > 350 mm